The effect of low-temperature annealing on (Ga,Mn)As trilayer structures was investigated. The annealing was done at 250-280 °C in air and the temperature dependence of the magnetic moment was measured as a function of annealing time. The annealing time and thickness dependence of TC suggested that diffusion process from the surface is involved in the modification of the properties of the film by annealing.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)